<?php

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namespace ImageOptimization\Modules\Optimization\Classes;

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use ImageOptimization\Classes\Image\{

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Exceptions\Invalid_Image_Exception,

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Image,

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Image_Meta,

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WP_Image_Meta,

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};

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use ImageOptimization\Classes\File_System\Exceptions\File_System_Operation_Error;

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use ImageOptimization\Classes\File_System\File_System;

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use ImageOptimization\Classes\File_Utils;

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use ImageOptimization\Modules\Optimization\Classes\Exceptions\Image_Validation_Error;

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use ImageOptimization\Plugin;

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if ( ! defined( 'ABSPATH' ) ) {

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exit; // Exit if accessed directly.

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}

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class Validate_Image {

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public const MAX_FILE_SIZE = 10 * 1024 * 1024;

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public const MAX_BIG_FILE_SIZE = 25 * 1024 * 1024;

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/**

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* Returns true if $image_id provided associated with an image that can be optimized.

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*

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* @param int $image_id Attachment id.

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*

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* @return true

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* @throws Image_Validation_Error

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* @throws Invalid_Image_Exception

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*/

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public static function is_valid( int $image_id ): bool {

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$attachment_object = get_post( $image_id );

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if ( ! $attachment_object ) {

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throw new Image_Validation_Error(

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esc_html__( 'Can\'t optimize this file. If the issue persists, Contact Support', 'image-optimization' )

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);

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}

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if ( ! wp_attachment_is_image( $attachment_object ) ||

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! in_array( $attachment_object->post_mime_type, Image::get_supported_mime_types(), true ) ||

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(

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in_array( $attachment_object->post_mime_type, Image::get_mime_types_cannot_be_optimized(), true ) &&

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! get_post_meta( $image_id, Image_Meta::IMAGE_OPTIMIZER_METADATA_KEY, true )

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)

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) {

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throw new Image_Validation_Error( esc_html( self::prepare_supported_formats_list_error() ) );

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}

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if ( ! file_exists( get_attached_file( $image_id ) ) ) {

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throw new Image_Validation_Error(

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esc_html__( 'File is missing. Verify the upload', 'image-optimization' )

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);

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}

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self::validate_file_size( $image_id );

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return true;

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}

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/**

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* Prepares the error message for the unsupported file formats.

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*

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* @return string The error message.

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*/

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private static function prepare_supported_formats_list_error(): string {

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$formats = Image::get_supported_formats();

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$formats = array_filter(

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$formats,

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fn ( $format ) => ! in_array( $format, Image::get_formats_cannot_be_optimized(), true )

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);

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$last_item = strtoupper( array_pop( $formats ) );

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$formats_list = join( ', ', array_map( 'strtoupper', $formats ) );

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return sprintf(

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__( 'Unsupported file format. Only %1$s, or %2$s are supported', 'image-optimization' ),

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$formats_list,

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$last_item

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);

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}

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/**

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* @throws Invalid_Image_Exception

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* @throws Image_Validation_Error

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*/

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public static function validate_file_size( int $image_id, string $image_size = Image::SIZE_FULL ) {

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try {

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$wp_meta = new WP_Image_Meta( $image_id );

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$image_size = $wp_meta->get_file_size( $image_size )

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?? File_System::size( ( new Image( $image_id ) )->get_file_path( $image_size ) );

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} catch ( File_System_Operation_Error $e ) {

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throw new Image_Validation_Error(

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esc_html__( 'File is missing. Verify the upload', 'image-optimization' )

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);

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}

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if ( $image_size > self::MAX_FILE_SIZE ) {

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if ( ! self::are_big_files_supported() ) {

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throw new Image_Validation_Error(

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esc_html(

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sprintf(

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__( 'File is too large. Max size is %s', 'image-optimization' ),

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File_Utils::format_file_size( self::MAX_FILE_SIZE, 0 ),

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)

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)

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);

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}

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if ( $image_size > self::MAX_BIG_FILE_SIZE ) {

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throw new Image_Validation_Error(

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esc_html(

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sprintf(

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__( 'File is too large. Max size is %s', 'image-optimization' ),

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File_Utils::format_file_size( self::MAX_BIG_FILE_SIZE, 0 ),

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)

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)

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);

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}

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}

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}

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/**

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* Returns the max file size allowed by the current plan.

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*

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* @return int File size in bytes.

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*/

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public static function get_max_file_size(): int {

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return self::are_big_files_supported() ? self::MAX_BIG_FILE_SIZE : self::MAX_FILE_SIZE;

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}

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public static function are_big_files_supported(): bool {

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static $is_allowed = null;

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$connect_manager = Plugin::instance()->modules_manager->get_modules( 'connect-manager' );

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if ( null === $is_allowed ) {

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if ( ! $connect_manager->connect_instance->is_connected() ) {

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$is_allowed = false;

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return $is_allowed;

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}

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$plan_data = $connect_manager->connect_instance->get_connect_status();

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if ( ! isset( $plan_data->subscription_plan->features->large_upload_allowed ) ) {

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$is_allowed = false;

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} else {

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$is_allowed = (bool) $plan_data->subscription_plan->features->large_upload_allowed;

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}

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}

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return $is_allowed;

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}

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}

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